AM79C873

PRELIMINARY Am79C873 NetPHY™ -1 10/100 Mbps Ethernet Physical Layer Single-Chip Transceiver with 100BASE-FX Support DISTINCTIVE CHARACTERISTICS s 100BASE-FX direct interface to industry standard electrical/optical transceivers s 10/100BASE-TX physical-layer, single-chip transceiver s Compliant with the IEEE 802.3u 100BASE-TX standard s Compliant with the ANSI X3T12 TP-PMD 1995 standard s Compliant with the IEEE 802.3u AutoNegotiation protocol for automatic link type selection s Supports the MII with serial management interface s Supports Full Duplex operation for 10 Mbps and 100 Mbps s High performance 100 Mbps clock generator and data recovery circuitry s Adaptive equalization circuitry for 100 Mbps receiver s Controlled output edge rates in 100 Mbps s Supports a 10BASE-T interface without the need for an external filter s Provides Loopback mode for system diagnostics s Includes flexible LED configuration capability s Digital clock recovery circuit using advanced digital algorithm to reduce jitter s Low-power, high-performance CMOS process s Available in a 100-pin PQFP package GENERAL DESCRIPTION The NetPHY-1 device is a physical-layer, single-chip, low-power transceiver for 100BASE-TX, 100BASE-FX, and 10BASE-T operations. On the media side, it provides a direct interface to Fiber Media for 100BASE-FX Fast Ethernet, Unshielded Twisted Pair Category 5 Cable (UTP5) for 100BASE-TX Fast Ethernet, or UTP5/UTP3 Cable for 10BASE-T Ethernet. Through the IEEE 802.3u Media Independent ...